As I've mentioned before, when I did Trang the things that really helped were 1. doing a giveaway at LibraryThing and 2. getting an ad with Bookbub.
This time around, Bookbub is WAY more expensive, and the people at LibraryThing haven't done squat. (My sister had the same complaint--I guess the culture there has changed. I have more ratings at GoodReads at this point.)
So I poked around, and thanks to the ever-reliable Lindsay Buroker I found these recommendations. I'm giving eBookSoda and Free Kindle Books & Tips a go, because both are willing to waive the review requirements for new books. (FreeBooksy also has a BargainBooksy thing--I might use one or the other some day, but both are relatively pricey, so I'm going to start with the cheaper services.)